Investigation of executive function change following anterior temporal lobectomy: Selective normalization of verbal fluency

Roy C. Martin, Stephen M. Sawrie, Robert Edwards, David L Roth, Edward Faught, Ruben I. Kuzniecky, Richard B. Morawetz, Frank G. Gilliam

Research output: Contribution to journalArticle

Abstract

The nociferous cortex hypothesis predicts that electrophysiological normalization to distal extratemporal brain regions following anterior temporal lobectomy (ATL) will result in improvements in executive functioning. The present study examined the effects of seizure laterality and seizure control on executive function change. The authors administered the Wisconsin Card Sorting Test (WCST), Trails B, and the Controlled Oral Word Association Test to 174 temporal lobe epilepsy patients who underwent ATL. No significant changes were found on the WCST or Trails B tests, regardless of surgery side or seizure-free status. However, verbal fluency significantly improved in seizure-free patients. Findings were consistent with the nociferous cortex hypothesis suggesting selective executive function improvement following ATL. These findings are discussed in terms of recent research demonstrating extrahippocampal metabolic normalization following surgery.

Original languageEnglish (US)
Pages (from-to)501-508
Number of pages8
JournalNeuropsychology
Volume14
Issue number4
DOIs
Publication statusPublished - Jan 1 2000
Externally publishedYes

    Fingerprint

ASJC Scopus subject areas

  • Neuropsychology and Physiological Psychology

Cite this